KR101133725B1 - A led illuminating device for plant cultivation - Google Patents

Abstract

PURPOSE: An LED lighting device for the plant cultivation capable of cultivating high quality plants is provided to mix red LED light promoting the growth of the plants and blue LED light suppressing the growth of the plants. CONSTITUTION: An LED lighting device for the plant cultivation comprises the following: an LED lighting unit(1) including a red LED lamp(20) and a blue LED lamp for mixing red LED light promoting the growth of the plants and blue LED light suppressing the growth of the plants in a ratio of 2-4:1; an aluminum case(10) including heat radiation pins protruded on the outside; PCB substrates(40) fixed to the inside of the case; reinforcing units(12) formed on both upper side of the case; a hanging protrusion(13) for hanging the LED lighting unit using a jamming piece(52); insertion grooves(11) formed on the lower both sides of the case; and a transparent plate(50) assembled to the insertion grooves for waterproofing and preventing the insertion of foreign materials.

Description

LED lighting device for plant cultivation {A LED illuminating device for plant cultivation}

The present invention relates to a LED lighting device for plant cultivation to help the growth by supplying the light required for the plant, and more particularly, a suitable mixing of the light of the red LED lamp for promoting plant growth and the blue LED lamp for suppressing plant growth. When the light is reflected on the plant, the amount of light and the photon density (PPFD) are delivered to the plant to provide sufficient nutrition to grow high-quality plants, which greatly improves the quality and reliability of the product, thereby providing consumers with a good image. I would have to.

As is well known, mankind has continued to develop endlessly through the expansion of activity places and time with the invention of artificial lights and improved productivity through various applications in agriculture, animal husbandry or fisheries. This is in line with the 130-year history of the incandescent bulb invented by Edison.

Currently, the agricultural sector is facing another turning point with the advent of semiconductor LEDs. Conventional lighting has a wide wavelength range and is tailored to human vision, whereas LED can realize accurate and short wavelengths required by plants and insects, enabling accurate plant cultivation like computers.

The LED, which was invented in the 1960s, was first used by NASA in the United States to grow plants in outer space, and is currently being used in various fields with the price drop caused by mass production. In neighboring Japan, plant factories that started in the 1980s are applying LEDs in the 1990s to provide consumers with high quality pesticides and flowers throughout the season. In addition, it provides not only stable supply of high quality crop seedlings to producers, but also mass production of industrial plants, tree seedlings, medicinal plants, and medical plant raw materials. Therefore, LED lighting will not be a general fashion but an essential tool for survival and competitiveness, and many applications will be pioneered.

Therefore, the need for plant-cultivated LED lighting,

Changes in environmental climate-At present, the earth is facing a food crisis due to reduced crop yields due to climate change and industrialization.

Needs of the Time-Energy Savings-Energy savings are a global trend, and agriculture is no exception.

2013 incandescent light exit

Eco-Friendly Agriculture-Plant cultivation using excessive chemical fertilizers or pesticides is a thing of the past and requires cultivation methods that are harmless to the human body and consider environmental issues.

LED light treatment technology-Produces 365 days regardless of climate change. It saves more than 80% of energy compared to incandescent lamps. It is an eco-friendly product that does not use mercury or heavy metals. It can effectively grow plants without using chemical fertilizer. Controllable LED light technology

And plant growing LED lighting is the light that plants need,

The radiation of the sun receives various scattering or absorption until it reaches the earth directly, and reaches the wavelength range of about 300nm to 3000nm directly. Humans detect light in the range of 380nm to 780nm to distinguish between light and shade and the brightest light of 555nm green. Effective radiation to plants is physiological effect radiation (300 ~ 800nm) and photosynthetic effect radiation (PAR: 400 ~ 700nm) Double absorbs blue and red light and reflects green light (plants with green light reflect green) Because)

In addition, LED lighting for plant cultivation is as follows.

That is, the applied peak wavelength range is

Absorption wavelength of plants: chlorophyll (440 nm, 655 nm), photosynthesis (430 nm, 670 nm)

Detection wavelength of insects: 280 nm to 580 nm

Detection wavelength of fish: 480nm ~ 510nm

The effect of the wavelength on the plant,

1400-1000 (IR-A)-No special effects on plants, affects heat

780 (IR-A)-A wavelength that promotes specific stretching effects on plants.

700 (red)-germination 730, maximum photosynthesis (670)

660 (Red)-Chlorophyll a maximum (655), germination and leaf distribution subgeneration (660)

610 (Red yellow)-Not beneficial to photosynthesis. Pest Control (580 ~ 650)

510 (Green-Yellow) -Some absorption by yellow pigment, fish picked up (485)

430--440 (blue)-maximum of photosynthetic action (430), maximum of chlorophyll action (440), pest attraction

400-315 (UV-A) -Thickening leaves of plants in general. Promotes color development. Pest attraction

280 (UV-B) -important action in many synthetic processes (immunomer formation), harmed if strong

100 (UV-C)-Rapidly withering plants

The brightness of the lighting that I joined to a plant,

Since most lighting is developed for human beings, units based on human visibility are used, but photosynthesis has nothing to do with human sense of vision.

For example, compared to the 0.038, the green light of 555nm, the blue light of 450nm, even if the same energy, only about 4% of human eyes can feel. In order to construct the luminosity necessary for plant cultivation, it is necessary to use units corresponding to the properties of photosynthesis.

Photosynthetic photon density (PPFD) is referred to as Photosynthetic Photon Flux Density.

As mentioned above, when plant cultivation meets various conditions, a desired crop can be obtained. Among them, light plays the most important role. The leaves of the plant contain chloroplasts, which produce the nutrients needed for plant growth. Chloroplasts photosynthesize to produce nutrients. Inside the chloroplast, there is a greenish pigment called chlorophyll, which acts to receive light. There are two types of chlorophyll, a and b. Chlorophyll a and b absorb red and blue light, respectively.

Conventionally, incandescent lamps, fluorescent lamps, halogen bulbs, and high pressure sodium bulbs have been used for lighting required for plant growth, but recently, LEDs for plant cultivation have been used to replace the plant growth effects. And the effects of energy savings and environmental protection. The plant growth cultivation apparatus of the lighting device with the LED for plant cultivation can be controlled by constructing a control unit for plant growth by irradiating light of the optimum wavelength band and brightness according to the characteristics of the plant and the parameters to be controlled. A lighting device using a light emitting diode has been developed.

However, conventionally used crop cultivation LED lighting device is a lighting device arranged in a single color, mostly red or super red LED lighting device. In this case, since the wavelengths applied to each crop are different, the crops that need to control flowering and the crops that need to increase productivity need to have different wavelengths. There was an inconvenience.

In order to solve the above problems, a conventional LED cultivation apparatus for plant cultivation has been filed. In other words, Patent Document 1 Patent Registration No. 0902071 (Application No. 2009-0018826) (Name: Plant Tactile Cultivation Method and Apparatus Using LED Lamp), Patent Document 2 Publication No. 2011-0075386 (Application No. 2009-0131827) (Name: LED lighting device for plant cultivation), Patent Document 3 Patent Registration No. 0959994 (Application No. 2010-0028266) (Name: LED lighting device for plant factory and its manufacturing method), Patent Document 4 Patent No. 1027205 (Application No. 2010-0075759) (name: LED lighting device for plant cultivation). Among the above-described prior art configurations, the technical configuration of Patent Document 1 is By using the fast ON / OFF characteristics of LED lamps and monochromatic light emission characteristics, it is possible to adjust the mixing ratio of red LED lamp and blue LED lamp properly, adjust the light quantity ratio to which the light is irradiated, and to repeat the lighting time and lighting time in a certain speed range. The present invention provides a method and apparatus for promoting cultivation that can maximize the growth of cultivated plants through the means. Specifically, a red LED at 660 nanometer wavelength and a blue LED at 450 nanometer wavelength have a ratio of 5: 1. By mixing the ratio, the light ratio of red LED to blue LED is adjusted to 5: 1 or 10: 1, and the lighting and extinction time ratio is 1: 1 or 1: 2, so the lighting time is between 100 microseconds and 10 seconds. And a plant-promoting cultivation method and apparatus using an LED lamp which is made to be adjusted. However, the above-mentioned conventional patent documents 1 and patent documents 2 to 4 degrees have a problem that the light quantity and the photon density (PPFD) are below the standards, and the technical effects such as blocking heat dissipation effect and blocking foreign matters cannot be expected.

The present invention has been made to solve the above problems of the prior art, the light of the red LED lamp to promote the growth of plants and the blue LED lamp to suppress the growth of plants 2: 1 or 3: 1 or 4 The first purpose is to provide an LED lighting unit that can cultivate high-quality plants by illuminating the plants in a ratio of 1: 1 so that light quantity and photon density (PPFD) can sufficiently supply nutrients to the plants. , The second purpose of the present invention by the above technical configuration is to collect the light without the loss of light, the third purpose is to increase the amount of light and photon density (PPFD), and thus the fourth purpose is When the light of the red LED lamp that promotes the growth of the plant and the blue LED lamp that inhibits the growth of the plant is properly mixed with the light, the amount of light and the photon density (PPFD) are sufficiently delivered to the plant. The fifth purpose is to structurally anticipate technical effects such as heat dissipation and blocking foreign substances. The sixth purpose is to greatly improve the quality and reliability of products. It provides LED lighting device for plant cultivation that allows consumers to plant good images.

In order to achieve the above object, the present invention provides a mixture of red LED lamps that promote plant growth and blue LED lamps that suppress plant growth in a ratio of 2: 1 or 3: 1 or 4: 1. It provides a LED lighting device for plant cultivation, characterized in that the light; and the light quantity and the photon density (PPFD) is a LED lighting unit for cultivating high quality plants to ensure sufficient nutrition supply to the plants.

As described in detail above, the present invention is a plant in a state in which a mixture of red LED lamps for promoting plant growth and blue LED lamps for inhibiting plant growth is mixed at a ratio of 2: 1 or 3: 1 or 4: 1. In the light of the light quantity and the photon density (PPFD) is provided with LED lighting unit to cultivate high-quality plants to ensure that the nutrient supply to the plant is sufficiently delivered.

The present invention by the above technical configuration is to collect the light without loss of light.

And the present invention is to increase the amount of light and photon density (PPFD).

In addition, the present invention, when the light is properly mixed with the red LED lamp to promote the growth of the plant and the blue LED lamp to suppress the growth of the plant is reflected on the plant, the amount of light and photon density (PPFD) is sufficiently delivered to the nutrient supply to the plant High quality plants can be grown.

In addition, the present invention is to be expected to achieve technical effects, such as structurally blocking the heat dissipation effect and foreign matter.

The present invention is a very useful invention that can significantly improve the quality and reliability of the product due to the above-described effect so that consumers can plant a good image.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention for achieving this effect are as follows.

1 is an exploded perspective view of a LED lighting device for plant cultivation applied to the present invention.
Figure 2 is a front configuration diagram of the LED lighting device for plant cultivation applied to the present invention.
Figure 3 is an enlarged side of the main portion of the LED lighting device for plant cultivation applied to the present invention
Degree.
4 is a circuit diagram of a LED lighting device for plant cultivation applied to the present invention.
5 is a product picture of the LED lighting device for plant cultivation applied to the present invention.
Figure 6 is a photograph of the installation state of the LED lighting device for plant cultivation applied to the present invention.

LED lighting device for plant cultivation applied to the present invention is configured as shown in Figs.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

First, the present invention is the amount of light by shining on the plant in a state of mixing the light of the red LED lamp to promote the growth of the plant and the blue LED lamp to suppress the growth of the plant in a ratio of 2: 1 or 3: 1 or 4: 1 And it provides a LED lighting device for plant cultivation equipped with an LED lighting unit (1) to cultivate high-quality plants by the photon density (PPFD) is enough to deliver the nutrition supply to the plant.

In particular, the LED lighting unit 1 is configured as shown in FIGS.

That is, the case 10 is formed long in the longitudinal direction, the aluminum case 10 is formed with a plurality of heat dissipation fins 14 protruding on the top to discharge heat to the outside.

In addition, one or at least two or more PCB substrates 40 are fixedly installed in the case 10.

In addition, a plurality of red LEDs 20 and blue LEDs 30 are fixed to the lower end of the PCB substrate 40 at predetermined intervals.

In addition, the reinforcing part 12 is protrudingly formed on both sides of the upper end of the case 10 applied to the present invention, and the engaging piece 52 having elasticity is inserted into the side of the reinforcing part 12 to provide the LED lighting part 1. Hanging jaw 13 is formed to be able to hang closely.

In addition, in the present invention, the fitting grooves 11 and the fitting grooves 11 formed on both inner bottom surfaces of the case 10 are assembled with a transparent plate 50 to block water and foreign matter.

In addition, between the case 10 and the PCB substrate 40 applied to the present invention, the PCB substrate 40 is firmly attached to the case 10 as well as the heat of the PCB substrate 40 can be easily used as the case 10. The heat transfer member 51 of the silicon material is provided to make it.

In addition, both ends of the case 10 applied to the present invention is provided with a rubber stopper 60 to block waterproofing and foreign matter.

In particular, the red LED 20 and the blue LED 30 is configured as follows.

That is, it is provided with a red LED 20 of 0.8 ~ 1W responsible for promoting plant growth, and a blue LED 30 of 1.1 ~ 1.3W responsible for suppressing plant growth, as shown in Figure 2 One blue LED 30 is repeatedly provided between the red LEDs 20 so that the quantity of light and the photon density (PPFD) of the LEDs are sufficiently delivered to the plant.

On the other hand, the circuit of the PCB substrate 40 applied to the present invention is configured as shown in FIG.

That is, the present invention includes a plurality of voltage control resistors 41 connected to the power of the red LED 20 and the blue LED 30.

In the present invention, the red LED 20 connected to one series and two parallels among the voltage control resistors 41 and the blue LED 30 connected to two other series and two parallels from the voltage control resistors 41 are connected. It is provided.

In addition, the present invention is provided with a current control IC (43) and voltage noise cancellation (42) connected to each of the voltage control resistor (41), the current limiting resistor (44) is provided with a connection to the current control IC (43) do.

Finally, as shown in FIG. 3, the red LED 20 is fixedly installed at the lower end of the PCB substrate 40.

That is, the housing 21 is provided with a space portion therein.

In addition, the transparent lens 22 is installed in the inner space of the housing 21 and has a recess 23 formed therein so that the LED lamp 24 is fitted on the top.

In addition, a cover 25 is installed at an upper end of the housing 21.

And is fixed to the bottom of the cover 25 is provided with an LED lamp 24 that emits red light.

In particular, the angle of the transparent lens 22 applied to the present invention is preferably 50 ~ 90 degrees.

That is, when the angle of the transparent lens 22 is 50 degrees or less, there is a problem that the plant does not grow sideways because the light is too concentrated on the plant, and when the angle of the transparent lens 22 is 90 degrees or more, the light is too In order to inhibit the growth of the plant because it spreads to the outside, the angle of the transparent lens 22 is preferably 50 to 90 degrees, even more preferably 60 degrees is optimal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

It is to be understood that the invention is not to be limited to the specific forms thereof which are to be described in the foregoing description, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

Referring to the operation and effect of the LED lighting device for plant cultivation of the present invention configured as described above are as follows.

First of all, the present invention provides a sufficient amount of light and photon density (PPFD) to nutrient supply to plants when the light of the red LED lamp that promotes plant growth and the blue LED lamp that suppresses plant growth is properly mixed and shined on the plant. It is intended to grow high quality plants.

To this end, the present invention is installed a plurality of red LED 20 and blue LED 30 at a predetermined interval on the PCB substrate 40, in particular the red LED 20 and blue LED 30 is responsible for the promotion of plant growth. It is provided with a red LED 20 of 0.8 ~ 1W, and a blue LED 30 of 1.1 ~ 1.3W responsible for the suppression of plant growth, one blue LED 30 between the two red LED (20) Is repeatedly provided so that the quantity of light and the photon density (PPFD) of the LED are sufficiently delivered to the plant.

As described above, the light of the red LED lamp 20 that promotes the growth of the plant and the blue LED lamp 30 that suppresses the growth of the plant is mixed in a ratio of 2: 1 to illuminate the plant in terms of light quantity and photon density ( PPFD) provides sufficient nutrition to the plants so that they can grow high quality plants.

As described above, the PCB substrate 40 on which the red LED 20 and the blue LED 30 are installed is attached to the inner circumferential surface of the case 10 using double-sided tape or adhesive, but the PCB substrate 40 and the case 10 are installed. The heat transfer member 51 is made of silicon in order to transfer heat to the case 10 well.

And the present invention is to fit the transparent plate 50 in the fitting groove 11 of the case 10, which is to provide the effect of the transparent plate 50 to block the ingress of water and foreign matter.

The LED lighting unit 1 assembled as described above is to be hanged on the engaging piece 52. At this time, since the engaging piece 52 has a property of its own elastic force, when the two pieces of wings are opened, the reinforcing part is opened. The hooking jaw 13 formed on the side of the 12 is easily caught. Of course, during the separation can be easily separated if the wing is separated from the locking jaw (13).

When the LED lighting unit 1 of the present invention assembled as described above is used, the red LED 20 sheds light intensively only on the plant as shown in FIG. 2 to promote the growth of the plant, and the blue LED 30 is lighted. This spreads widely, allowing the plant to spread sideways while inhibiting the growth of the plant.

The heat generated by using the LED lighting unit 1 of the present invention is transferred to the case 10 through the thermal shear member 51, the case 10 is a plurality of heat radiation fins 14 provided at a predetermined interval on the top As the heat is discharged to the outside, it provides the effect of extending the service life.

Particularly, the red LED lamp 20 and the blue LED lamp 30 applied to the present invention shed light on plants in a ratio of 2: 1, so that the amount of light and photon density (PPFD) sufficiently deliver nutrition to the plants. You can do it.

That is, the table below shows the light quantity and photon density (PPFD) measurement data of the red LED 20.

Measuring distance
/ mm
Red LED Ez angle 60 degrees #One #2 Quantity of light Photon Density (PPFD) Quantity of light Photon Density (PPFD) 300 660 148.7 660 149.1 250 660 207.7 660 208 200 660 287.6 660 288 150 660 385.5 660 385.4 100 660 660 660 466.7

* Measurement condition (Date of measurement August 24, 2011)

1, measure the red LED part once 30 minutes after turning the LED lamp power on

2. Measure 5 times after the same red LED twice

As described above, the present invention has an advantage that the photon density (PPFD) is higher than that of the prior art even though the number of LEDs is lowered while reducing the number of LEDs compared to the prior art.

That is, the present invention can increase the photon density (PPFD) by the red LED 20, as shown in Figure 3, when the LED lamp 24 is fitted into the groove 23 of the transparent lens 22 The light is concentrated to only the transparent lens 22 without leaking to the outside, and the transparent lens 22 collects light at an angle of 60 degrees and intensively radiates to the plant so that it can greatly help plant growth. The housing 21 enclosing the transparent lens 22 is made of an opaque material so that light of the transparent lens 22 can be emitted only to the transparent lens 22 without being emitted to the outside.

The technical idea of the LED lighting device for plant cultivation according to the present invention is actually capable of repeating the same result, and in particular, by implementing the present invention, it is possible to promote technology development and contribute to industrial development, which is worth protecting.

<Explanation of symbols for the main parts of the drawings>
1: LED lighting 10: case
20: red LED 30: blue LED
40: PCB substrate 50: transparent plate

Claims (10)

delete delete The amount of light and photon density (PPFD) is reflected by shining the light from the red LED lamp that promotes the growth of the plant and the blue LED lamp that suppresses the growth in the ratio of 2: 1, 3: 1 or 4: 1. ) LED lighting unit for cultivating high quality plants to ensure sufficient nutrition to the plant is provided; provided, the LED lighting unit is formed long in the longitudinal direction, a plurality of heat radiation fins to emit heat to the outside at the top A case made of aluminum which protrudes; One or at least two PCB substrates fixedly installed in the case; In the LED lighting device for plant cultivation comprising; and a plurality of red and blue LEDs fixedly installed at a predetermined interval on the bottom of the PCB substrate,
Reinforcing parts 12 are protruded from both sides of the upper end of the case 10, and the locking jaw 13 to close the LED lighting part 1 is inserted into the engaging piece 52 having elasticity on the side of the reinforcing part. LED lighting device for plant cultivation further characterized in that it is formed.
The method of claim 3,
Fitting grooves 11 formed on both inner bottom surfaces of the case 10; And
The fitting groove 11 is a transparent plate 50 for blocking water and foreign matter; LED lighting device for plant cultivation, characterized in that the assembly is installed.
The method of claim 3,
Between the case 10 and the PCB board 40, the heat transfer member 51 made of silicon material is further provided to securely attach the PCB board to the case and to easily transfer heat from the PCB board to the case. LED lighting device for plant cultivation.
delete The method of claim 3,
The red LED 20 and the blue LED 30,
0.8 ~ 1W red LED (20) responsible for the promotion of plant growth, 1.1 ~ 1.3W blue LED (30) responsible for the suppression of plant growth, one between the two red LED (20) LED lighting device for plant cultivation, characterized in that the plurality of blue LED 30 is repeatedly provided so that the light quantity and photon density (PPFD) of the LED is sufficiently delivered to the plant.
The method of claim 3,
The circuit of the PCB substrate 40,
A plurality of voltage control resistors 41 connected to the power supplies of the red LED 20 and the blue LED 30;
A red LED (20) connected to one series in series and two in parallel among the voltage control resistors (41);
A blue LED 30 connected to two other series and two parallel lines among the voltage control resistors 41;
A current control IC 43 and voltage noise cancellation 42 connected to each of the voltage control resistors 41; And
LED lighting device for plant cultivation, characterized in that the current control IC (43) is provided with a current limiting resistor (44) connected.
The method of claim 3,
The red LED 20 is fixed to the bottom of the PCB board 40,
A housing 21 having a space formed therein;
A transparent lens 22 installed in an inner space of the housing 21 and having a recess 23 formed at an upper end thereof so that an LED lamp is fitted;
A cover 25 installed at an upper end of the housing 21; And
LED lamp 24 is fixed to the bottom of the cover 25 to emit red light; LED lighting device for plant cultivation, characterized in that the provided.
The method according to claim 9,
LED lighting device for plant cultivation, characterized in that the angle of the transparent lens 22 is 50 ~ 90 degrees.

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